Inside Northwestern Polytechnical University's largest research partnership: Xi'an Jiaotong University

Behind Northwestern Polytechnical University's research output sits a defining relationship: 1,775 co-authored works with Xi'an Jiaotong University (China) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 940 collaborating institutions across 72 countries, producing 55,453 joint works over the window, with international co-authors on 19% of output.

The collaborative work travels: its field-weighted citation impact stands at 3.07, where the world average is 1.0.

The Research Collaboration Index, the first global account of how universities actually collaborate, publishes its first full edition on Tuesday 15 September at 09:00 UK.

Every figure derives from the open global research record and is checkable at source.